PhyBot M1vsunitree B2

For power grid and petrochemical facility inspections, where thermal imaging and gas sensing payloads and all-terrain mobility justify cost., B2 is easier to deploy today — M1 is the longer bet on capability.

PhyBot M1
PhyBot
M1
$42K–$42K
unitree B2
unitree
B2
$77K–$100K
M1
0 wins
vs
B2
1 wins

Category breakdown

Deploy & operate

Readiness, uptime, navigation & connectivity

B2
  • 45
    Deployment readiness
    72
  • 60
    Maintenance confidence
    60
  • Vision-led navigation (estimated)
    Navigation
    Vision-led navigation (estimated)
  • Wi-Fi / cloud fleet management (estimated)
    Connectivity
    Wi-Fi / cloud fleet management (estimated)

Cost & ROI

Price accessibility and ROI clarity

Even
  • 66
    Price accessibility
    41
  • 35
    ROI clarity
    58

Capability

Payload, speed, runtime & labor replacement

Even
  • 60
    Labor replacement
    45
  • 20 kg per arm, 50 kg via backpack system
    Payload
    40 kg (walking sustained); 120 kg (standing)
  • 10 km/h (6.2 mph)
    Speed
    6 m/s
  • 2+ hours
    Battery
    4–6 hours (45 Ah / 2250 Wh capacity); 5 hours without load for 20 km mileage, 4 hours with 20 kg load for 15 km mileage

Fit & future

Environment fit, footprint & long-term upside

Even
  • 70
    Environment fit
    80
  • 75
    Future potential
    68
  • Height 172 cm (5 feet 7 inches)
    Footprint
    Standing: 1098 × 450 × 645 mm; Lying: 880 × 460 × 330 mm
M1 · Best for

Heavy parts assembly in automotive or appliance manufacturing where human-scale bipedal access to elevated worktables is required

B2 · Best for

Power grid and petrochemical facility inspections, where thermal imaging and gas sensing payloads and all-terrain mobility justify cost.

Final judgment

If immediate deployment is the priority, choose B2. If the goal is to be ready when M1's capabilities mature, track it.

Open interactive comparisonM1B2

More head-to-head